Hi, The tiny coil inside the beam path is the low frequency coil used for DC testing of the tube.
The tube shown is a standard performance tube and has no degaussing coil. The flat windings on top of the shield are the C-field winding. The high performance cavity is even "prettier". You can see one at http://www.leapsecond.com/pages/cesium-tube/ Towards the bottom you can see the C-field windings in slots around the circumference of the cavity. BTW in 5071A tubes there is no internal difference between the STD and High Performance tubes. They just run at different temperatures! Saves having to build two different tubes! Some more interesting 5071A tube info will post in a couple weeks!!! (Hint: Run your 5071A HiPerf tube at the Std tube temperature to extend life!!!???) Cheers, Corby _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
